55146011 has 4 divisors (see below), whose sum is σ = 58389912. Its totient is φ = 51902112.

The previous prime is 55145989. The next prime is 55146017. The reversal of 55146011 is 11064155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11064155 = 5 ⋅2212831.

It is a cyclic number.

It is not a de Polignac number, because 55146011 - 2¹⁰ = 55144987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55146017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621925 + ... + 1621958.

It is an arithmetic number, because the mean of its divisors is an integer number (14597478).

Almost surely, 2^55146011 is an apocalyptic number.

55146011 is a deficient number, since it is larger than the sum of its proper divisors (3243901).

55146011 is a wasteful number, since it uses less digits than its factorization.

55146011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243900.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 55146011 is about 7426.0360219972. The cubic root of 55146011 is about 380.6314777402.

The spelling of 55146011 in words is "fifty-five million, one hundred forty-six thousand, eleven".